Universal coupling.



w. KENNEDY. UNIVERSAL COIJPLING.

APPLICATION F |LED SEPT- 21, 1914-- l 39,125@ Patented FIGA'.

Mmm/@Amm www May 1.1; 1915. 3 SHEETS-SHEET l.

W. KENNEDY.

UNIVERSAL COUPLING.

APPLICATION FILED SEPT. 21. 1914.

3 SHEETS-SHEET 3.

FIC-LII.'

- www Patented May/11, 1915.

WALTERINNNEDY, or PITTSBURGH, PENNSYLVANIA. UNr'vnnsAL coU'PLI'NG.

Specification of Letters 1atent. I

Patented May 11, 1915.

Application led September 21, 191:4. 'Serial No. 8664!,680.l

To all whom it may concern:

Be it known that I, WAI/IER KENNEDY, residing at Pittsburgh, inthecounty -of Allegheny and State of Pennsylvania, a citizen 'of the UnitedStates, have invented or discovered certain new and useful Improvementsin Universal Couplings, of which improvements the following is aspecification.

The invention describedherein relates to certain improvements incouplings for connecting rotatable parts driven one by the other, thecoupling being so constructed as to permit ofone of the parts beingshifted out of alinement with the other part, while maintainingoperative engagement with the y latter.

The invention is hereinafter more full-y described and claimed.

In the accompanying drawings forming a part of this specification,Figures 1 and 2 are elevations at right angles one to the other of myimproved coupling; Figs. 3 and 4 are sectional views of the same, theplanes of section being indicated bv the lines III- III and IV-IV Fig.5; Fig. 5 is a transverse section through the coupling; Fig. 6 is aperspective view of the intermediate or connecting block; Figs. 7 and 8are views similar to Figs. 3 and 4 illustrating` a modification of thecoupling, and Fig. 9 is a transverse section on a plane indicated by theline IX--IX Fig. 8'; Figs.l 10 and 11 are sectional views taken onplanes at right angles to each other illustrating certain modifications.

Thile the invention described herein is shown as connecting the neck ofa roll with its driving spindle, it will be understood that theimprovement is euuallv adapted for connecting any driving and drivenrotataole parts. As shown in Figs. 1 and 4 the spindle or shaft 1 isprovided at its end with diametrically arranged lugs z projectingsubstantially parallel with the axis ofA across thc end of the neck ofthe roll. This rib cess 16 in one of the lugs 2.

extends into a groove 7 formed in one side of the block and extending'diametrically across the block at right angles to the notches 3. Aswill be seen by reference to Figs. 1, 2, 3 'and 6, the side of the blockin which the groove is formed is inclined in opposite direction .from adiametric line at right angles -to the groove and the rib 6 is somewhatshorter than the depth of the groove, so that the block can oscillate onthe ridge b or apex of the inclined surfaces of the block. l

In orde-r to prevent the block from mov ing transversely out ofengagement with the rib, a pin 8 is passed through the side walls of thegroove in the block and through the rib 6, the hole in the rib .beingmade suiiiciently larger than the pin to permit of the angular shiftingof the block. As it is generally impracticable to disengage the couplingmembersf by a longitudinal movement of the parts connected, a hole 9 isformed through one or both of the lugs 2V -pin 8, a longitudinallvremovable bolt 10 may be emnloved for locking the block and rib togethertransversely. As shown in Figs. 7 and 8. the rib is notched and an axialhole is formed longitudinally in the part carrying the rib for thereception of the locking bolt. Through the wall l2 forming the bottom ofthe groove 7 isl formed an opening for the reception of the end of thebolt. said opening being made larger than the bolt in a directionparallel with the groove so that the bolt when in engagement with theblock will not interfere with the angular shifting of the latter. Thebolt can be shifted into and out of enga gement with the block bv a. pin13 arranged in a slot 14 andengaging the bolt.

In Figs. v10 and 11. the pin 8a holding the block 4 and rib- 6 inoperative relation is provided with a head and at its opposite end witha stem 15 which extends into a re- This stem is threaded for thereception of a nut 17 and betweenthe bottom of the recess 16 and the nutis interposed a spring 18. As the ten bearing surfaces of the lugs andrib by plates of brass or other suitable metal detachably secured tosaid parts.

No claim is made herein` specifically to the construction shown in Figs.7, 8 and 9 as such construction per se forms the subject-matter ofanother application.

It is characteristic of my improvement that the lugs and the rib on theparts or members to be connected overlap and that portions of the memberor block through which motion is transmitted are interposed betweenthese overlapping lugs and rib. By reasonof such construction thetransmitting block is subjected to pressure and not to any materialtorsional strain.

- I claim herein as 4my invention:

1. A coupling comprising driving and driven rotatable parts, one of saidparts having lugs and the other part being provided With a rib extendingacross its end, in combination with a block provided with eripheralnotches for the reception of said ugs and with a groove for thereception of said rib, the lugs and rib slidably bearing against theside Walls of the notches and groove and the lugs movable longitudinallyin the notches to permit of the .driving or driven parts being shiftedto angular position one to the' other. V Y

2. A coupling comprising driving and driven rotatable parts, one of saidparts having lugsyand the other part being provided with a rib extendingacross its end, in combination with a block provided with peripheralnotches for the reception of said lugs and with a groove for thereception of said rib, the lugs and rib slidably bearing against entlyof the block in directions substantiallyat right angles to the directionof rotation of the coupling and a pin engaging the block and a portionprojecting into engagement with the block.

4. A coupling h ving in combination driving and driven r tatable parts,aconnecting block, the driving`and driven parts having portionsprojecting therefrom and positively engaging the block in planes atright angles to each other, said parts being movable to4 angularpositions relative one -to the other while maintaining engagement withthe block,one of said parts being movable relative to the block in thedirection of the axis of rotation of said part, and means for preventingthe block from moving relative to the other part in the direction of theaxis of rotation of said part.

In testimony whereof I have hereunto set my hand.

WALTER KENNEDY.

Witnesses:

ALICE A. TRILL, THos. B. JOYCE.

